[Elecraft] Elecraft KX3 IQ out and spectral display pograms

[Edward R Cole]

When I first got my LP-Pan and read the manual (doesn't everyone do 
this?), I found it strange that the audio outputs had  the ability to 
lift grounds (apparently to reduce noise/ground-loop issues).  I 
guess I must be doing something right as I did not encounter any hum 
or noise issues with audio shields grounded.

In the early years of building radio-computer I/F boxes (HB) it 
became quickly evident that isolation transformers solved a lot of 
these "grounding issues".

I read your presentation, Jim, and gives me a laundry list of things to check.

73, Ed - KL7UW
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